A business suit that is regularly $250 is put on sale. They are reducing the price by 30% each day. How much will the suit be worth in 10 days?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

answer: 0.64

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answer is  

c.

36

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